Controller.



PATENTED AUQ. 2, 1904.

F. B'. O0REY.. CONTROLLER. APPL'IVOATION IILED'FEB. 4, 1903.

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UNITED STATES FRED B. COREY, OF SCHENECTADY, NEV YORK, ASSIGNOR TOELECTRIC COMPANY, A CORPORATION OF NE YORK.

Patented August 2, 1904.

PATENT OFFICE.

GENERAL CONTROLLER.

SPECIFICATION forming part of Letters Patent No. 766,327, dated August2, 1904.

Application filed February 4, 1903.

To all w/wm it may concern:

Be it known that I, FRED B. COREY, a citizen of the United States,residing at Schenectady, county of Schenectady, State of New 5 York,have invented certain new and useful Improvements in Controllers, ofwhich the following is a specification.

Myinvention relates to controllers designed especially for railway use,and relates more I specifically to the construction of thereversing-switch in said controller.

The object of my invention is to provide a reversing-switch having greatsimplicity of construction, which shall be very efficient in operation,and which may be adjusted to suit various sizes of motor equipments.

The invention-comprises a reversing-switch cylinder built up of aplurality of segmentallyshaped interchangeable units, each of said unitscarrying sufficient contact-segments to act as a completereversing-switch for a motor equipment having a predetermined number ofmotors.

More specifically stated, my invention comprises a reversing-switchhaving one or more semicylindrical members mounted so as to embrace theopcrating-shaft of said reversingswitch, each of said semicylindricalunits being made up of insulating material molded 3 into the propershape having the connecting members of the contact-segments molded intothe insulating material.

The switch is especially adapted for one, two, or four motor equipments,one of said semicylindrical units forming a complete reversing-cylinderfor one or two motors, as desired. when fastened to the shaft of thereversingswitch in such a manner as to embrace the said shaft and almostcompletely surround the same form the reverse-cylinder for a two or fourmotor equipment, as desired, it being understood that the requirednumber of contact-segments are carried by the insulating material andthe required number of contactfingers are provided to engage the saidcontact-segments.

In the accompanying drawings, which illustrate the preferred embodimentof my inven- Two of said semicylindrical units Serial No. 141,836. (Nomodel.)

tion, Figure 1 is a front elevation of a con- 5 troller with the frontcover removed. Fig.

2 is a plan view of said controller having a part of its cap-platebroken away to show the relative position of the reversingswitch. Fig. 3is a section through the reversingswitch cylinder on the line 3 3,Fig. 1. Figs.

4c and 5 are side and end views, respectively,

of the connecting member for the contactsegments; and Fig. 6 is adiagrammatic representation of the connections between thecontact-segments of a reversing-switch for a single-motor equipment.

Referring now to the figures of the drawings, A represents acontroller-casing having a cap-plate B. Mounted within the controller- 65 casing A in the customary relationship are the controlling-switchcylinder C and the reversing-switch cylinder D.

The customary interlocking mechanism between the controlling-switchcylinder and the 7 reversing-switch cylinder is indicated by a. Theshaft 0 of the controlling-switch cylinder and the shaft (Z of thereversing-switch cylinder project through the cap-plate and are adaptedto receive the operating-handles, only one of which namely, the handle(Z of the reversing-switch-is shown in the figures.

The reversing-switch D is built up of a plurality of segmentally-shapedor semicylindrical interchangeable units 71. and it, made of 30insulating material and molded into the desired shape. Thesesemicylindrical units, as is clearly shown'in the figures of thedrawings, are adapted to embrace the reversing-switch shaft (Z and arefastened thereto by means of 5 bolts k, which pass completely throughsaid shaft. Embedded in theinsulating material of the semicylindricalunits are the speciallyeonstructed connecting members for thecontact-segments. These connecting members 9 are preferably made ofheavy copper wire and are formed into the shape shown in Figs. 4 and 5.The ends of said connecting members are flattened, so as to form theheads 2, and said heads are turned to one side, as shown in said figuresand also in Fig. 3. The said heads are tapped at s, so as to receive thescrews which are used for holding the removable contact-segments intheir proper positions. During the process of molding thesemicylindrical units the connecting members p are embedded in theinsulating material in such a manner that the faces of the heads 9 areflush with the outer surface of the said semicylindrical unit. Theconnecting members 0 are made in two lengths and are arranged as shownin Fig. 6, which illustrates diagrammatically the connections for thecontact-segments in a reversing-switch for a single-motor equipment.ticed in said Fig. 6 that the contact-segments t, which are on one sideof the switch, are connected together in pairs, adjacent contactsegmentsbeing connected together to form each pair, While on the other side ofthe switch on which the contact-segments tare mounted the alternatecontact-segments are connected together.

In the figures of the drawings I have illustrated the proper size ofreversing-switch to be used with a four-motor equipment, the switchshown being built up of two semicylindrical units each carryingcontact-segments 'sufiicient to form a complete reversing-switch for atwo-motor equipment. It will be readily seen that in order to change thereversingswitch shown in the figures into a reversingswitch for atwo-motor equipment it is only necessary to omit one of the saidsemicylindrical units and use a shorter bolt in place of the bolt is tofasten the remaining semicylindrical unit to the shaft (Z. For asingle-motor equipment a unit of one-half the length of one of the unitsshown in the figures of the drawings, having its contactsegments mountedin the manner shown diagrammatically in Fig. 6, is used. For a one ortwo motor equipment a single row of contact-fingers f is all that isrequired; but for a four-motor equipment a double row ofcontact-fingers, mounted as shown in Figs. 1 and 2, is the preferredconstruction.

Although I have shown my reversing-switch as having removablecontact-segments, my invention is not necessarily limited to such aconstruction, for the segments could readily be formed integral with theconnecting members. The connecting members may be made, if so desired,of sheet-metal punchings of the desired shape and bent into the properform to accomplish the purpose for which the heavywire connecting membershown in the drawings is used.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is

1. A reversing-switch cylinder comprising It will be no a plurality ofsegmentally-shaped interchangeable units, each of said units carryingsufiicient contact-segments to act as a complete reversing-switchcylinder for a predetermined number of motors.

2. A reversing-switch cylinder comprising one or more semicylindricalinterchangeable units adapted to embrace the operating-shaft of theswitch, each of said semicylindrical units being formed of moldedinsulating material into which the connecting members of thecontact-segments of the switch are embedded.

3. A segmentally-shaped unit for a reversing-switch cylinder formed ofmolded insulating material and having a plurality of replaceablecontact-segments mounted thereon, the connecting members for saidcontact-segments being embedded in said insulating material.

4:. In a reversing-switch, two series of contact-fingers, and arelatively movable member comprising two interchangeable semicylindricalunits of insulating material, each of said units carrying a plurality ofcontact-segments-adapted to engage one of said series ofcontact-fingers.

5. Areversing-switch comprising a plurality of contact-fingers, and arelatively movable member made up of a plurality of-semicylindricalunits of molded insulating material, each of said units carrying aplurality of contact-segments to engage said contact-fingers, saidsegments having their connecting members embedded in said insulatingmaterial.

6. In a reversing-switch for a plurality of motors, a plurality ofinterchangeable semicylindrical units of molded insulating. material,each of said semicylindrical units having a sufficient number ofcontact-segments to allow it to be used as a complete reversing-switchcylinder for a smaller number of motors.

7. A reversing-switch cylinder comprising a shaft, and a plurality ofinterchangeable semicylindrical units of molded insulating materialfastened to said shaft, each of said units having a sufficient number ofcontactsegments to allow it to be used as a complete reversing-switchcylinder for a motor equipment having a predetermined number of motors.

In witness whereof I have hereunto set my hand this 3d day of February,1903.

FRED B. COREY.

Witnesses:

BENJAMIN B. HULL, HELEN ORFORD.

